Date: Sat, 28 Feb 1998 10:03:02 -0800 (PST) From: Tom <tom@sdf.com> To: Charles Mott <cmott@srv.net> Cc: freebsd-isp@FreeBSD.ORG, freebsd-hardware@FreeBSD.ORG Subject: Re: CSU/DSU Message-ID: <Pine.BSF.3.95q.980228095807.26763A-100000@misery.sdf.com> In-Reply-To: <Pine.BSF.3.96.980227175754.11605A-100000@darkstar.home>
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On Fri, 27 Feb 1998, Charles Mott wrote: > Are there any CSU/DSU modules that plug into an ISA or PCI slot? My basic > interest is getting a T-1 (DS-1, actually) connection using FreeBSD as the > router. > > The CSU/DSU units I have seen communicate with a router via a synchronous > serial connection. Are there any economical interface cards designed to > receive a 1.5 megabit/sec synchronous connection? Are standard UARTs > capable of this? You can get high speed sync cards for FreeBSD at http://www.etinc.com. Also, cards supported by the ar(4) driver, and the cx(4) driver. "Standard" UARTs are not capable of sync operation. A typical sync card will do PPP framing for you, so you need a specialized driver to send packets to the card. I think USR/3COM makes a card with a built in DSU. It is not supported under FreeBSD though. Integrated DSUs can be a pain. They almost never give you as much info as a real DSU. > Charles Mott Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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